28288197

素因数分解:

$3^4\times 7^1\times {\mathrm{49891}}^1$

素因数の和:49910

約数の個数: 20

約数和(自身を含む): 48295456

約数和(自身を除く): 20007259

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49891, 149673, 349237, 449019, 1047711, 1347057, 3143133, 4041171, 9429399, 28288197]

約数ペア:

[(1, 28288197), (3, 9429399), (7, 4041171), (9, 3143133), (21, 1347057), (27, 1047711), (63, 449019), (81, 349237), (189, 149673), (567, 49891)]